Spatiotemporal human representation based on 3D visual perception data is a rapidly
growing research area. Representations can be broadly categorized into two groups,
depending on whether they use RGB-D information or 3D skeleton data. Recently, skeleton-
based human representations have been intensively studied and kept attracting an
increasing attention, due to their robustness to variations of viewpoint, human body scale
and motion speed as well as the realtime, online performance. This paper presents a …